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Datasheet. CR20 specification
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.
3a
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.
RIGHT-Hand
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.
0.6250in. ⁓5/8"
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
2.0312in. ⁓2-3/64"
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.
1.2500in.
The length of a straight line which passes through the center of a stud,and terminates at the circumference.
0.5000in.
0.7500in.
A measurement of the longest dimension of the stud,in distinction from width.
1.2500in.
The number of threads on the item per linear inch measured on a line parallel to the thread axis.
20
A designation that is used for the purpose of general identification of the thread.
0.500in. ⁓1/2"
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
w/means for relubrication
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
cam follower
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.
unf
Answers.
Unf
Cam follower
20
0.6250 inches
Right-hand
3a
Schedule B number: 8482400000
Needle roller bearings
FSC 3110 ⁓ Bearings, antifriction, unmounted
Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.
Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)
NSN 3110-00-159-1603 CAM FOLLOWER,NEEDLE BEARING
unf thread series cam follower w/means for relubrication 20 thread quantity per inch 2.0312" overall length 0.6250" thread length right-hand 3a thread class
- NIIN
- 001591603
- NIIN Date
- 01/01/63
- Schedule B
- 8482400000
- Name Code
- 00040
- FIIG
- A044A0
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Metal content unknown
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | CTA45 | Cage 07484 |
| 2. | 8341195 | Cage 19207 |
| 3. | CF25 | Cage 51588 |
| 4. | 1483408 | Cage 80064 |
| 5. | CF1-1-4 | Cage 92563 |
| 6. | S40 | Cage 45014 |
| 7. | CF1 1-4 | Cage 39317 |
Major End Users Countries and entities
- - Government Printing office
- - Argentina
- - Canada
- - Greece
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CR20 / Cam follower,needle bearingWhat is the formal definition of this item?
An assembly consisting of a roller and stud used to effect a rolling contact with a cam, and convert the reciprocating or oscillating motion to linear motion.
